C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Replacement Timing Chain for '91

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Old Aug 19, 2013 | 03:52 PM
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Default Replacement Timing Chain for '91

What should I get for a replacement chain?

The engine is staying all stock with the factory roller cam.
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Old Aug 19, 2013 | 04:51 PM
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http://www.jegs.com/i/Cloyes/220/9-3...rentProductId=

Think I remember that is what I had
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Old Aug 19, 2013 | 04:52 PM
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Cloyes #C499, is the L98 replacement Chain or #C3064K is the replacement Timing Set which includes both gear sprockets, available from any local or online parts stores.






.

Last edited by GKK; Aug 19, 2013 at 04:57 PM.
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Old Aug 19, 2013 | 04:57 PM
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I used an Edelbrock when I did my engine last year. Simple install.

That said, if you're that far into it, you should go ahead and get the cam that I got. It runs smooth as the stock L-98 cam, but with more lift you get a wider RPM range out of it. No loss in mileage or driveablity.
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Old Aug 19, 2013 | 06:33 PM
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Originally Posted by GKK
Cloyes #C499, is the L98 replacement Chain or #C3064K is the replacement Timing Set which includes both gear sprockets, available from any local or online parts stores.
.
My sprockets don't appear to have wear on them. Is it OK to just replace the chain?
Or for only the $13 more does it make more sense to get the sprockets as well?

This engine has 63K miles on it and looks really clean on the inside. I have the intake off of it also.
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Old Aug 19, 2013 | 07:12 PM
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Originally Posted by roger55
My sprockets don't appear to have wear on them. Is it OK to just replace the chain?
Or for only the $13 more does it make more sense to get the sprockets as well?

This engine has 63K miles on it and looks really clean on the inside. I have the intake off of it also.
Don't quibble over 13 bucks. Get it a fixed
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Old Aug 19, 2013 | 08:42 PM
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I'm not considering a cam change. I'm fixing this up for my wife to drive and more power would mean nothing to her.

Been doing some more looking and I saw that Cloyes makes a "heavy duty" timing chain set which is a single roller (C3092).

I think the double roller may be overkill for me but I think maybe the single roller might make sense. I can get one on ebay for $46.66 and free shipping.
Agree?
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Old Aug 19, 2013 | 08:47 PM
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If I'd torn that far into my engine I'd surely not quibble over the cost of a Cloyes double roller chain set.
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Old Aug 19, 2013 | 08:52 PM
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Originally Posted by MrWillys
If I'd torn that far into my engine I'd surely not quibble over the cost of a Cloyes double roller chain set.
This engine will stay completely stock.
Been reading that double roller chain is way overkill for a street engine. It does seem like a single roller would be better than the original type though.

Plus, my wife will drive this very gently. I doubt the accellerator will ever hit the floor.
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Old Aug 19, 2013 | 08:58 PM
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Originally Posted by roger55
This engine will stay completely stock.
Been reading that double roller chain is way overkill for a street engine. It does seem like a single roller would be better than the original type though.

Plus, my wife will drive this very gently. I doubt the accellerator will ever hit the floor.
How much do you want to have to do it again? Don't skimp on something like that.
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Old Aug 20, 2013 | 04:29 AM
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Originally Posted by roger55
My sprockets don't appear to have wear on them. Is it OK to just replace the chain?
Or for only the $13 more does it make more sense to get the sprockets as well?

This engine has 63K miles on it and looks really clean on the inside. I have the intake off of it also.
I just did this on my '86 with 116K miles. From what I could tell there was virtually no wear on the sprockets. The new (stock) chain I put on had about the same amount of slack as the old chain, so now I'm doubting that it needed to be replaced (I had to take the timing chain cover off to replace it because it was damaged and replaced the chain "while I was in there"). I saw a post recently that said that the chain is not considered to be a wear item and will last the life of the engine. I didn't want to deal with getting the crank gear off anyway...

I considered a Cloyes double roller but decided it was overkill for my stock strictly street driven car. One interesting thing I found is that the stock chain is used on multiple GM cars and you can find a better deal by searching for the part number. I bought mine from a Buick site.
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Old Aug 20, 2013 | 09:35 AM
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I went ahead and ordered the Cloyes single roller for $46.66.

http://www.ebay.com/itm/221223936339...84.m1439.l2649

Thanks for the help guys.
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